How we treat and maintain the above ground pool will be different with the inground pool. For inground pools with water tube type covers, make sure if there are any water tubes breaking over the winter that you must replace them. The availability of a few extra tubes handy will be a good idea so that you can replace them as required. The usability of the tubes is intended to hold the cover on the pool and also to prevent wind from blowing the cover up. The cover will fall or blow up easily caused by some areas which are not properly covered with tubes.